31311420

素因数分解:

$2^2\times 3^1\times 5^1\times 7^1\times {\mathrm{74551}}^1$

素因数の和:74570

約数の個数: 48

約数和(自身を含む): 100197888

約数和(自身を除く): 68886468

約数列:

[1, 2, 3, 4, 5, 6, 7, 10, 12, 14, 15, 20, 21, 28, 30, 35, 42, 60, 70, 84, 105, 140, 210, 420, 74551, 149102, 223653, 298204, 372755, 447306, 521857, 745510, 894612, 1043714, 1118265, 1491020, 1565571, 2087428, 2236530, 2609285, 3131142, 4473060, 5218570, 6262284, 7827855, 10437140, 15655710, 31311420]

約数ペア:

[(1, 31311420), (2, 15655710), (3, 10437140), (4, 7827855), (5, 6262284), (6, 5218570), (7, 4473060), (10, 3131142), (12, 2609285), (14, 2236530), (15, 2087428), (20, 1565571), (21, 1491020), (28, 1118265), (30, 1043714), (35, 894612), (42, 745510), (60, 521857), (70, 447306), (84, 372755), (105, 298204), (140, 223653), (210, 149102), (420, 74551)]